Delivery drones are real and they're operating on a national level, but they're not dropping off impulse purchases, and some of the most important applications are not in the United States. Zipline, a Bay Area startup, inked a deal with the government of Rwanda in 2016 and now uses small, autonomous planes to deliver medical supplies, and in particular blood, to rural communities across the African country. "It's a pretty cool paradigm shift for people who think all technological revolution is going on in US, and it'll trickle down to poor countries," says Zipline CEO, Keller Rinaudo, presenting his vision for drone deliveries on stage at the WIRED25 summit in San Francisco on Monday. "This is the opposite of that." Amazon created an internet-wide buzz when it announced it wanted to start delivering online shopping via drone, in a 60 Minutes interview in 2013.